Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1986-09-02
1988-10-11
Reger, Duane A.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303104, B60T 862
Patent
active
047766441
ABSTRACT:
An anti-skid control apparatus for a vehicle braking system in which front and rear wheels are diagonally connected, includes fluid pressure control valve devices arranged between fluid pressure generating chambers of a tandem master cylinder and brake apparatus for supplying a fluid pressure in accordance with the lower one of the brake fluid pressures of the front wheels controlled by the fluid pressure control valve devices. A control unit discriminates the side of the road having the lower frictional coefficient. The control signals of the front and rear wheels on the discriminated frictionally lower side of the road are combined logically with each other to control the first or second fluid pressure control valve devices so that the brake fluid pressures of the front and rear wheels on the frictionally lower side of the road and of the rear wheel on the frictionally higher of the road side are controlled. Also, the second or first fluid pressure control valve devices is controlled for independently controlling the brake fluid pressure of the front wheel on the frictionally higher side of the road.
REFERENCES:
patent: 3674317 (1972-07-01), Mangold
patent: 3907377 (1975-09-01), Mayer
patent: 4349876 (1982-09-01), Lindemann
patent: 4374421 (1983-02-01), Leiber
patent: 4451096 (1984-05-01), Gygax
patent: 4508393 (1985-04-01), Drometer
patent: 4547022 (1985-10-01), Brearley et al.
patent: 4593955 (1986-06-01), Leiber
Nippon A B S Ltd.
Reger Duane A.
Ryther James P.
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